Dormer A321SETM21 HSS Tri-Flat Intermediate Length Drill, Metric Set, 21pc (3-13 x 0.5mm) in box

Drill bit set in standard plastic cassette consisting out of 21 mechanic's length drills with three-flat shank, A321 diameters 3.0 up to 13.0 mm in increments of 0.5 mm, according Work Norm with 135° split point. HSS with steam and bronze tempered surface finish. Primarily suited for hand-held operations and pillar drill machines.